A fiber asphalt concrete mixing device suitable for fiber dispersion

Abstract

The present application relates to bituminous concrete material preparation equipment technical field, especially to a kind of fiber asphalt concrete mixing device suitable for fiber scattering, including fiber grabbing stripping mechanism, fiber screening mechanism being arranged below fiber grabbing stripping mechanism and mixing mechanism being arranged below fiber screening mechanism;Fiber grabbing stripping mechanism is used to realize the grabbing, stripping of fiber;Fiber screening mechanism is used to realize the screening, separation, scattering of fiber;Mixing mechanism is used to mix fiber asphalt concrete.The fiber grabbing stripping mechanism includes fiber grabbing stripping shell, first motor being installed on fiber grabbing stripping shell and motor drive disc being arranged in fiber grabbing stripping shell.The present application can realize the uniform dispersion of long fiber, avoid the entanglement of fiber, thereby improve the reinforcing effect of fiber in asphalt concrete, play the role of fiber reinforced asphalt concrete performance, effectively improve the mechanical properties of asphalt concrete.

Description

Technical Field

[0001] This invention relates to the field of asphalt concrete material preparation equipment, and in particular to a fiber asphalt concrete mixing device suitable for fiber dispersing. Background Technology

[0002] Currently, fibers are added to asphalt concrete to improve its mechanical properties. Longer fibers generally result in better mechanical performance. However, excessively long fibers can become entangled, leading to a decrease in the performance of the asphalt concrete.

[0003] In contrast, existing asphalt concrete mixing technologies lack effective methods for dispersing and uniformly distributing long-fiber materials. Directly adding long fibers to the mixer easily leads to fiber aggregation and entanglement, preventing uniform dispersion of the fibers within the concrete matrix and reducing their reinforcing effect. Therefore, the difficulty in uniformly dispersing long fibers during mixing results in a decline in the performance of asphalt concrete. This is primarily due to the lack of effective techniques for dispersing long fibers. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fiber-reinforced asphalt concrete mixing device suitable for fiber dispersion. This device can achieve uniform dispersion of long fibers, avoid fiber entanglement and aggregation, thereby enhancing the reinforcing effect of fibers in asphalt concrete, maximizing the performance of fiber-reinforced asphalt concrete, and effectively improving the mechanical properties of asphalt concrete.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fiber-reinforced asphalt concrete mixing device suitable for fiber dispersing includes a fiber grasping and stripping mechanism, a fiber screening mechanism located below the fiber grasping and stripping mechanism, and a mixing mechanism located below the fiber screening mechanism.

[0007] The fiber gripping and peeling mechanism is used to grip and peel the fibers.

[0008] The fiber screening mechanism is used to screen, separate, and disperse the fibers.

[0009] The mixing mechanism is used for mixing fiber-reinforced asphalt concrete.

[0010] Preferably, the fiber gripping and peeling mechanism includes a fiber gripping and peeling housing, a first motor mounted on the fiber gripping and peeling housing, and a motor drive disk disposed inside the fiber gripping and peeling housing. The first motor is connected to the motor drive disk, and the motor drive disk can be rotated by the first motor.

[0011] The edge of the motor drive disk is provided with multiple clamps, and the top of the motor drive disk is provided with a round cover with a notch.

[0012] The bottom of the fiber gripping and peeling shell is provided with a frustum, which is correspondingly arranged with the motor drive disk above it. The frustum is provided with a fiber storage chamber for storing fibers. The frustum is also provided with a first fiber separation platform, a second fiber separation platform and a fiber input port. The fiber storage chamber, the first fiber separation platform, the second fiber separation platform and the fiber input port are distributed in a circumferentially spaced manner.

[0013] Preferably, there are eight grippers, which are distributed in a circumferential pattern. Each gripper includes a gripper bracket, an actuating rod passing through the gripper bracket, and two gripping arms located at the lower end of the gripper bracket. The bottom of the actuating rod is provided with an actuating platform. The two gripping arms are symmetrically arranged from left to right, and a transmission rod is installed at the upper end of each gripping arm. A gripping chopstick is installed at the lower end of each gripping arm. The two transmission rods and the two gripping chopsticks are symmetrically arranged from left to right, and the actuating platform abuts against the two transmission rods.

[0014] Preferably, the first fiber separation table is provided with a second polyester brush, and the second fiber separation table is provided with a third polyester brush, the length of the second polyester brush and the third polyester brush is 1cm.

[0015] By adopting the above technical solution, the fiber gripping and peeling mechanism uses a clamp driven by a first motor to grip the fibers in batches, and cooperates with the second polyester brush on the first fiber separation table and the third polyester brush on the second fiber separation table to achieve effective separation between fibers, thus solving the problem of long fibers easily entangled in the prior art.

[0016] Preferably, the fiber screening mechanism includes a second motor and a screen disc disposed on one side of the second motor. The output shaft of the second motor is connected to a belt drive wheel, which is connected to the screen disc via a belt. The outer side of the screen disc is provided with screen disc rollers for supporting the screen disc. The screen disc is correspondingly arranged with the fiber inlet. A brush is also installed on the second motor, which is correspondingly arranged with the screen disc.

[0017] Preferably, the brush is provided with a first polyester bristle brush, the length of which is 2cm.

[0018] By adopting the above technical solution, the screen disc is driven to rotate by the second motor, and in conjunction with the first polyester brush on the brush, the fibers are further dispersed after multiple screening and brushing processes.

[0019] Preferably, the mixing mechanism includes a mixing chamber, a mixer disposed in the mixing chamber, and a third motor disposed outside the mixing chamber. The third motor is electrically connected to the mixer. The mixing chamber is provided with an asphalt inlet and an inlet for feeding minerals and additives.

[0020] Preferably, a fiber filler mixing chamber is provided below the fiber screening mechanism, and a valve is provided between the bottom of the fiber filler mixing chamber and the stirring chamber.

[0021] Preferably, a filling chamber is provided on one side of the fiber gripping and stripping mechanism, a filling port is provided at the top of the filling chamber, and the bottom of the filling chamber is connected to the fiber filling mixing chamber.

[0022] By adopting the above technical solution, the mixer is driven to rotate by a third motor, and the dispersion effect of the fiber and the mixing effect with the filler can be precisely adjusted by accurately controlling parameters such as motor speed and feeding rate, thereby improving product quality.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. This invention can achieve uniform dispersion of long fibers, avoid entanglement and aggregation between fibers, thereby improving the reinforcing effect of fibers in asphalt concrete, giving full play to the role of fiber-reinforced asphalt concrete performance, and effectively improving the mechanical properties of asphalt concrete.

[0025] 2. By precisely controlling the parameters of each process, this invention can accurately adjust the amount of fiber used, the dispersing effect, and the mixing effect with other materials, thereby improving the stability of product quality.

[0026] 3. The present invention adopts a modular design, which is conducive to operation and maintenance management, and different components can be replaced and maintained individually. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the internal structure of the fiber gripping and peeling mechanism in this invention;

[0029] Figure 3 This is a schematic diagram of the fiber screening mechanism in this invention;

[0030] Figure 4 This is a schematic diagram of the clamp in this invention. Detailed Implementation

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, so that those skilled in the art can better understand the advantages and features of the present invention, thereby making a clearer definition of the scope of protection of the present invention. The embodiments described in this invention are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] Reference Figures 1-4 A fiber-reinforced asphalt concrete mixing device suitable for fiber dispersing includes a fiber grasping and stripping mechanism, a fiber screening mechanism 32 disposed below the fiber grasping and stripping mechanism, and a mixing mechanism disposed below the fiber screening mechanism 32.

[0033] The fiber gripping and peeling mechanism is used to grip and peel the fibers.

[0034] The fiber screening mechanism 32 is used to screen, separate, and disperse the fibers.

[0035] The mixing mechanism is used for mixing fiber-reinforced asphalt concrete.

[0036] Specifically, refer to Figure 2 The fiber gripping and peeling mechanism includes a fiber gripping and peeling housing 30, a first motor 4 mounted on the fiber gripping and peeling housing 30, and a motor drive disk 8 disposed inside the fiber gripping and peeling housing 30. The first motor 4 is connected to the motor drive disk 8, and the first motor 4 can drive the motor drive disk 8 to rotate.

[0037] The edge of the motor drive disk 8 is provided with multiple clamps 2, and the top of the motor drive disk 8 is provided with a round cover 31, and the round cover 31 is provided with a notch 31-1.

[0038] Reference Figure 2 The bottom of the fiber gripping and peeling housing 30 is provided with a frustum 34, which is correspondingly arranged with the motor drive disk 8 above it. The frustum 34 is provided with a fiber storage chamber 24 for storing fibers. The frustum 34 is also provided with a first fiber separation platform 19, a second fiber separation platform 21 and a fiber input port 23. The fiber storage chamber 24, the first fiber separation platform 19, the second fiber separation platform 21 and the fiber input port 23 are distributed in a circumferentially spaced manner.

[0039] Specifically, refer to Figure 4The clamps 2 are eight in number and are arranged in a circumferentially spaced manner. Each clamp 2 includes a clamp bracket 2-1, an actuating rod 25 passing through the clamp bracket 2-1, and two clamping arms 28 located at the lower end of the clamp bracket 2-1. The bottom of the actuating rod 25 is provided with an actuating platform 26. The two clamping arms 28 are arranged symmetrically from left to right. The upper end of each clamping arm 28 is equipped with a transmission rod 27, and the lower end of each clamping arm 28 is equipped with a clamping chopstick 29. The two transmission rods 27 and the two clamping chopsticks 29 are arranged symmetrically from left to right. The actuating platform 26 abuts against the two transmission rods 27.

[0040] Among them, reference Figure 2 The first fiber separation table 19 is provided with a second polyester brush 20, and the second fiber separation table 21 is provided with a third polyester brush 22. The length of the second polyester brush 20 and the third polyester brush 22 is 1cm.

[0041] In this embodiment, the first motor 4 drives the motor drive disk 8 to rotate, and the rotation speed can be controlled to control the fiber content of the asphalt concrete. Eight grippers 2 are evenly embedded in the edge of the motor drive disk 8; when the motor drive disk 8 rotates, the eight grippers 2 also rotate. The fiber storage bin 24 is used to store fibers, and the second polyester brush 20 and the third polyester brush 22 are both used to brush away excess fibers.

[0042] When the fiber gripping and stripping mechanism is working, when the first motor 4 starts running, the actuating rod 25 of the gripper 2 at the notch 31-1 of the round cover 31 is not under force, the gripping arm 28 is open, and the gripper 2 is in a natural state. When the gripper 2 rotates to the edge of the notch 31-1 of the round cover 31, the round cover 31 abuts against the actuating rod 25, causing the actuating rod 25 to be forced to move the actuating platform 26 downward, which in turn causes the transmission rod 27 to move to the left and right, causing the gripping arm 28 to retract. At this time, the gripper 2 is in the fiber storage chamber 24, and the gripping chopstick 29 performs one fiber gripping. And each time the gripping chopstick 29 grips a small amount of fiber, it avoids excessive fiber affecting the performance of the asphalt concrete. When the gripper 2 rotates to the first fiber separation platform 19, the second polyester brush 20 will peel off the excess fibers in the gripper 2 that are attached to the gripper 2 due to electrostatic adsorption or inter-fiber friction, thus achieving fiber stripping and avoiding fiber entanglement. The second fiber separation stage 21 is used to further realize the above functions, which can more effectively separate the fibers and avoid the fibers from tangling. When the clamp 2 rotates to the other edge of the notch 31-1 of the round cover 31, the trigger rod 25 loses pressure, the clamping arm 28 loses clamping force, and the fiber falls into the fiber input port 23 due to gravity, and one fiber grabbing and separating operation is completed.

[0043] Specifically, refer to Figure 3The fiber screening mechanism 32 includes a second motor 12 and a screen plate 7 disposed on one side of the second motor 12. The output shaft of the second motor 12 is connected to a belt drive wheel 1. The belt drive wheel 1 is connected to the screen plate 7 via a belt 3. The outer side of the screen plate 7 is provided with screen plate rollers 9 for supporting the screen plate 7. The screen plate 7 is correspondingly arranged with the fiber inlet 23. A brush 5 is also installed on the second motor 12. The brush 5 is correspondingly arranged with the screen plate 7.

[0044] The brush 5 is provided with a first polyester bristle brush 6, the length of which is 2cm.

[0045] In this embodiment, the screen disc 7 is rotated by a second motor 12 via a belt drive pulley 1 and a belt 3. The screen disc roller 9 supports the screen disc 7 and allows it to rotate. When fibers fall from the fiber inlet 23 onto the screen disc 7, the second motor 12 operates, and the belt drive pulley 1 rotates the screen disc 7 via the belt 3. The fibers on the screen disc 7 pass through the brush 5, and are further separated and dispersed by the first polyester brush 6. Fibers that fail to enter the fiber filler mixing chamber 13 are further separated and dispersed through several rotations until they enter the fiber filler mixing chamber 13. Thus, one fiber separation and dispersion operation is completed.

[0046] Specifically, refer to Figure 1 The mixing mechanism includes a mixing chamber 33, a mixer 17 disposed in the mixing chamber 33, and a third motor 18 disposed outside the mixing chamber 33. The third motor 18 is electrically connected to the mixer 17. The mixing chamber 33 is provided with an asphalt inlet 15 and a mineral and additive inlet 16.

[0047] Specifically, refer to Figure 1 The fiber screening mechanism 32 is provided with a fiber filler mixing chamber 13 below it, and a valve 14 is provided between the bottom of the fiber filler mixing chamber 13 and the stirring chamber 33.

[0048] Specifically, refer to Figure 1 The fiber gripping and stripping mechanism has a filling chamber 11 on one side, a filling port 10 at the top of the filling chamber 11, and the bottom of the filling chamber 11 is connected to the fiber filling mixing chamber 13.

[0049] In this embodiment, the filler enters the filler chamber 11 through the filler inlet 10 and eventually mixes with the fibers in the fiber filler mixing chamber 13. In practical applications, the degree of fiber dispersion and the degree of fiber-filler mixing can be achieved by controlling the rate at which the filler is fed in and the rotation speeds of the first motor 4 and the second motor 12.

[0050] After the fiber filler is prepared, valve 14 is opened, and the fiber filler enters the mixing chamber 33. Asphalt, aggregate, and additives enter the mixing chamber 33 through asphalt inlet 15 and aggregate and additive inlet 16, respectively, and are mixed with the fiber filler. The third motor 18 drives the mixer 17 to fully mix all components. At this point, one cycle of fiber-reinforced asphalt concrete mixing is completed.

[0051] In summary, this invention can achieve uniform dispersion of long fibers, avoid entanglement and aggregation between fibers, thereby improving the reinforcing effect of fibers in asphalt concrete, giving full play to the role of fiber-reinforced asphalt concrete performance, and effectively improving the mechanical properties of asphalt concrete.

[0052] The descriptions and practices disclosed in this invention are readily apparent and understandable to those skilled in the art, and various modifications and refinements can be made without departing from the principles of this invention. Therefore, any modifications or improvements made without departing from the spirit of this invention should also be considered within the scope of protection of this invention.

Claims

1. A fiber asphalt concrete mixing device suitable for fiber dispersion, characterized by, It includes a fiber grasping and stripping mechanism, a fiber screening mechanism (32) located below the fiber grasping and stripping mechanism, and a stirring mechanism located below the fiber screening mechanism (32); The fiber gripping and peeling mechanism is used to grip and peel the fibers. The fiber screening mechanism (32) is used to screen, separate, and disperse the fibers; The mixing mechanism is used for mixing fiber-reinforced asphalt concrete; The fiber gripping and peeling mechanism includes a fiber gripping and peeling housing (30), a first motor (4) mounted on the fiber gripping and peeling housing (30), and a motor drive disk (8) disposed inside the fiber gripping and peeling housing (30). The first motor (4) is connected to the motor drive disk (8), and the first motor (4) drives the motor drive disk (8) to rotate. The edge of the motor drive disk (8) is provided with multiple clamps (2), and the top of the motor drive disk (8) is provided with a round cover (31), and the round cover (31) is provided with a notch (31-1). The bottom of the fiber gripping and peeling shell (30) is provided with a frustum (34), which is correspondingly arranged with the motor drive disk (8) above. The frustum (34) is provided with a fiber storage chamber (24) for storing fibers. The frustum (34) is also provided with a first fiber separation platform (19), a second fiber separation platform (21) and a fiber inlet (23). The fiber storage chamber (24), the first fiber separation platform (19), the second fiber separation platform (21) and the fiber inlet (23) are distributed in a circumferentially spaced manner. There are eight grippers (2), which are arranged in a circumferentially spaced manner. Each gripper (2) includes a gripper bracket (2-1), an actuating rod (25) passing through the gripper bracket (2-1), and two gripping arms (28) located at the lower end of the gripper bracket (2-1). The bottom of the actuating rod (25) is provided with an actuating platform (26). The two gripping arms (28) are arranged symmetrically on the left and right. A transmission rod (27) is installed at the upper end of each gripping arm (28), and a gripping chopstick (29) is installed at the lower end of each gripping arm (28). The two transmission rods (27) and the two gripping chopsticks (29) are arranged symmetrically on the left and right. The actuating platform (26) abuts against the two transmission rods (27). The first fiber separation table (19) is provided with a second polyester brush (20), and the second fiber separation table (21) is provided with a third polyester brush (22). The length of the second polyester brush (20) and the third polyester brush (22) is 1cm. The fiber screening mechanism (32) includes a second motor (12) and a screen plate (7) located on one side of the second motor (12). The output shaft of the second motor (12) is connected to a belt drive wheel (1). The belt drive wheel (1) is connected to the screen plate (7) via a belt (3). The outer side of the screen plate (7) is provided with screen plate rollers (9) for supporting the screen plate (7). The screen plate (7) is correspondingly arranged with the fiber inlet (23). A brush (5) is also installed on the second motor (12). The brush (5) is correspondingly arranged with the screen plate (7). The brush (5) is provided with a first polyester brush (6), the length of which is 2cm; The mixing mechanism includes a mixing chamber (33), a mixer (17) located in the mixing chamber (33), and a third motor (18) located outside the mixing chamber (33). The third motor (18) is electrically connected to the mixer (17). The mixing chamber (33) is provided with an asphalt inlet (15) and an aggregate and additive inlet (16).

2. The fiber-reinforced asphalt concrete mixing device suitable for fiber dispersing according to claim 1, characterized in that, The fiber screening mechanism (32) is provided with a fiber filler mixing chamber (13) below it, and a valve (14) is provided between the bottom of the fiber filler mixing chamber (13) and the stirring chamber (33).

3. A fiber-reinforced asphalt concrete mixing device suitable for fiber dispersing according to claim 2, characterized in that, The fiber gripping and stripping mechanism has a filling chamber (11) on one side, a filling port (10) at the top of the filling chamber (11), and the bottom of the filling chamber (11) is connected to the fiber filling mixing chamber (13).

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